Look for the best PDF watermark remover on Windows 11

Okular is an open-source PDF reader and editor, but it is not a true pdf watermark remover and cannot directly remove embedded watermark objects. It only provides tools for covering up watermarks on pages.

It allows you to hide unwanted watermarks with annotations, but using this feature does not actually remove the original watermark data from the PDF file.

First, download and install the software from the official website. Open the PDF file in the software, then click Tools → Annotation Tools.

Use the Stamp or Annotation tool to place a white box over the watermark area. Alternatively, you can use the Eraser tool to permanently cover the watermark with a solid block. When you're done, save the modified PDF file.

Once saved, the watermark will be visually hidden in the document.

This method cannot be used as a proper pdf watermark remover that deletes the underlying watermark data, so it is only suitable for users who just need to hide watermarks for personal viewing or simple sharing.

If you don’t want to use paid software, you can try this method. This is a basic workaround, so you should be aware that the watermark is not truly removed.